<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <!-- <script src="./src/index.js"></script>  前面课程所用-->
  <script src="./dist/index.js"></script>  <!--模块化需要编译才能用,所以用编译的-->
</head>
<body>
  
</body>
</html>